baber/WOPTO huggingface dataset:
Patent GB-466637-A (GB)
Title: Improvements in valve construction
IPC: F16K27/00
Filed: 1936-07-08
Abstract: 466,637. Valves. YARNALL-WARING CO. July 8, 1936, No. 18935. Convention date, Aug. 5, 1935. [Class 135] A multiple valve device comprises a piston valve 17 and a lift valve 41 arranged in series in a single valve body. The valve body B1 is provided with two non-coaxial bores which are in communication by way of passages 11, 12. One of these bores is fitted at one end with a nozzle N2 carrying a valve seat 31 and at the other end with a mounting M2 carrying the lift valve and its operating mechanism. The other bore is fitted at its respective ends with a mounting M1, carrying the piston valve 17 and its operating mechanism, and a nozzle N1 which serves to secure a sleeve 21 for the piston valve 17 in position. The lift valve may be interchanged with the piston valve and standard component parts are utilized to make up valves of various sizes.
Patent GB-1356766-A (GB)
Title: Production of materials for use as nuclear fuels
IPC: C01G43/025
Filed: 1972-04-24
Abstract: 1356766 Oxide purification RBG REAKTORBRENNELEMENTE GmbH 24 April 1972 [1 June 1971] 18962/72 Heading C1A The fluoride content of powdered oxides of nuclear fuel elements is reduced by pyrohydrolysis with steam in the absence of H 2 . The oxide is preferably UO 2  formed by reduction of UO 3  with H 2 , and the pyrohydrolysis may be carried out in the same reactor as reduction or in a separate reactor. The preferred temperature is greater than 650‹ C., e.g. 680‹ C., and the final F content may be less than 25 p.p.m.
Patent GB-633893-A (GB)
Title: Improvements in or relating to the preparation of ketonic derivatives of cyclohexene
IPC: C07C49/21
Filed: 1947-07-16
Abstract: Derivatives of cyclohexene of general formula R.C­C.C(CH3 = CH.CH = CH.CO.CH3, wherein R is a cyclohex-1-enyl ring which is substituted by either one, two or three methyl groups in the 2- and/or 6-positions, are obtained by treating an alcohol R.C­C.C(CH3) = CH.CH = CH.CHOH.CH3 with an aldehyde or ketone in the presence of an aluminium alcoholate, preferably at an elevated temperature. Aliphatic or cycloaliphatic ketones, e.g. acetone and cyclohexanone, are preferred, and a considerable excess of ketone or aldehyde should be employed.  Inert diluents such as benzene or toluene may be added to regulate the temperature of reaction. Aluminium alcoholates derived from secondary or tertiary aliphatic alcohols, e.g. isopropyl or tertiary butyl alcohols, are preferred.  It is stated that the acetylenic bond may be semi-hydrogenated to an ethylenic linkage by the use of hydrogen and a palladium catalyst supported on, e.g. charcoal or calcium carbonate.  In examples: (1) 8-(2-methylcyclohex-1-enyl)-, (2) 8-(6 : 6-dimethyl-cyclohex-1-enyl)-, and (3) 8-(2 : 6 : 6-trimethyl-cyclohex - 1 - enyl) - 6 - methylocta - 3 : 5 - dien - 7-yne-2-ol are refluxed under nitrogen in the presence of benzene, acetone and aluminium tertiary butoxide to yield the corresponding ketone, which is converted into its semi-carbazone on treatment with semicarbazide acetate.  According to the Provisional Specification ketones of the general formula R.C­C.CR1 = CH.(CH = CH)nCO.CH3, wherein R is a cyclohex-1-enyl group which may or may not be substituted by one, two or three methyl groups, R1 is hydrogen or a methyl group and n is 0, 1 or 2, are obtained by similar treatment of the corresponding alcohol.  In examples: (1) 6-methyl - 8 - (cyclohex - 1 - enyl) - octa - 3 : 5 - dien - 7 - yne - 2 - one and (2) 6 - (cyclohex - 1 - enyl)-hexa-4-en-5-yne-2-one are obtained by refluxing the corresponding alcohol under nitrogen in the presence of acetone, benzene and aluminium tertiary butoxide and a method given for the purification of these products via their semicarbazones. Specification 633,892, which describes the preparation of the alcohols used as starting materials, is referred to.
Patent GB-766272-A (GB)
Title: Improvements in swivelling pipe joints
IPC: F16L27/08
Filed: 1954-06-29
Abstract: 766,272. Swivelling pipe joints. SANDER, J. S. Sept. 28, 1955 [June 29, 1954], No. 19019/54. Class 99(1) A pipe g coaxial with a pipe a fits rotatably within a bush d of nylon secured inside the open . end of the pipe a. As shown the pipe a extends upwardly from a service counter and is counterbored at c to form a recess which houses the bush, the circumferential wall of the recess being turned over to form a flange f which retains the bush in place. The bush is internally tapered at the lower end thereof so as.to be substantially flush with the bore of the pipe a. Specification 516,855 is referred to.
Patent GB-689370-A (GB)
Title: Improvements in the manufacture of chlorine from hydrogen chloride
IPC: C01B7/04
Filed: 1951-08-13
Abstract: In the production of chlorine from hydrogen chloride utilizing the following reactions:-(b) 4 Fe Cl3 + 3 O2 --> 2 Fe2O3 + 6 Cl2 (a) 2 Fe2O3 + 12 Hcl --> 4 FeCl3 + 6 H2O <PICT:0689370/III/1> and using a granular reactive contact material consisting in the chloridized state of an inert porous granular carrier impregnated with ferric chloride (1 mol.), potassium chloride (1-2 mol.) and a chloride of Cu, Co or Ni (0.1-1 mol.), the contact material is allowed to flow successively through chloridizing and oxidizing zones 3, 4 respectively and is continuously recycled, a stream of hydrogen chloride being passed in counter-current to the moving material in the chloridizing zone while maintaining the temperature of the zone in a range increasing from top to bottom between the limits of about 300 DEG C at the top and about 500 DEG C at the bottom, and a stream of oxygen-containing gas being passed in countercurrent to the material in the oxidizing zone while maintaining the temperature of the zone in a range increasing from top to bottom between the limits of the inlet temperature of the material at the top and 550 DEG C at the bottom and a gas rich in chlorine being continuously withdrawn from the top of the oxidizing zone.
Patent GB-334642-A (GB)
Title: Improvements in devices for supporting cotton and like reels
IPC: D05B91/14
Filed: 1929-06-21
Abstract: 334,642. Bonvin, A. M. June 21, 1929. Reel holders.-In a cotton &c., reel holder of the kind comprising a reel-suporting spindle, a guide, and a cutter each of which is a separate element detachably secured on a common structure, the elements project vertically from the common base. A reelcarrying spindle b, guide c, and cutter d, are screwed in line on a base. To prevent the reel riding up, it is wedged in a tapered sleeve f with a roughened outer surface, the sleeve being mounted on a reduced part of the spindle and spring-pressed against the shoulder of the reduced part. The guide c consists of a rod of metal or other material with a hole c<1>, or may consist of pairs of metal wires or strips, or be in any other form; and the cutter consists of a stud with a cutting edge on top, although a separate blade could be secured to the stud. Any number of the elements may be mounted on the same base, but if there is only one cutter, it should be in a central position at the front of the base. Specification 329,673 is referred to in the Provisional Specification.
Patent GB-1149891-A (GB)
Title: Improvements in or relating to the electrical control of audio frequency gain
Inventor: TRENDELL EDWARD GEORGE
IPC: H03G7/00
Filed: 1965-05-06
Abstract: 1,149,891. Volume compressors. ELECTRIC & MUSICAL INDUSTRIES Ltd. 5 May, 1966 [6 May, 1965], No. 19087/65. Heading H4R. In a volume compressor the control voltage is derived from the compressor input by a circuit, Fig. 2, which comprises a pair of emitter followers 18 and 19 fed with antiphase signals from terminals 14 and 15 via D.C. restoring circuits including diodes 20 and 21 so that a full wave rectified, negative going signal, appears across the emitter resistance 26, and is fed to the complementary emitter follower 27. The signal appearing across emitter resistance 30 is applied to a pulse elongator 8 comprising a capacitor 32 which charges negatively quickly and decays slowly. The pulse from the elongator is applied via a differentiating circuit 10 to one input of a maximum selector 13 comprising transistors 37, 44 and 52. A second input to the maximum selector is fed from the elongator circuit 8 via an integrator and differentiator 11, and a third input to the maximum selector is fed from a second elongator circuit 9 and an integrator 12. Fig. 3b shows the composition of the output signal when a rectangular pulse is applied to the elongator circuit inputs, 57 being the waveform passed to transistor 37 by elongator 8 and differentiator 10, 58 is the waveform from circuit 11, 59 is the waveform from circuit 12, while the output from the maximum selector is as shown in the full line. The arrangement prevents repetitive variations in an output signal envelope, after an initial transient, causing higher harmonics to be generated in the compressor output due to fluctuations in the control signal.
Patent GB-688855-A (GB)
Title: Automatic egg cooker
Inventor: JEPSON IVAR
IPC: A47J29/02
Filed: 1950-07-31
Abstract: 688,855. Thermal switches. SUNBEAM CORPORATION. July 31, 1950, No. 19123/50. Class 38 (v) [Also in Groups VI and XI] An automatic egg cooking device (see Group VI) has a thermal switch to open the heating circuit on complete evaporation of the water. The normally-closed contacts 66, 67 are operated by a bimetallic strip 70 clamped to a ledge 73 with its high-expansion surface in heat-exchanging contact with a projection 74 on the lowest part of the cooking vessel. A toggle spring 76 fastened to projection 77 has pivotal engagement with a flat figure 8 spring 79 riveted to the bimetallic strip 70, opposite sides of the loops bending towards one another to cause a snap action, as the strip bends, to separate contacts 66, 67. A control lever 85 riveted to the spring 79 is operated to close contacts 66, 67 to initiate the cooking period.
Patent GB-1492593-A (GB)
Title: Electric control systems
IPC: H02P7/29
Filed: 1975-05-01
Abstract: 1492593 Control of D.C. motors DEFENCE SECRETARY OF STATE FOR 1 May 1975 [1 May 1974] 19134/74 Heading H2J [Also in Division G3] A D.C. control system for a load 3, e.g. a motor, comprises transistor switching means which is repetitively switched between a conductive state in which the load is connected to a D.C. power supply 2 and a non-conductive state in which the load is disconnected from the power supply, a clock pulse generator, a comparator 12, a bistable circuit 14 and a drive circuit 16, whereby clock pulses switch the bistable circuit into a first stable state in which it causes the drive circuit to drive the switching means into its conductive state, and whereby the comparator switches the bistable circuit into its second stable state, in which it causes the drive circuit to turn the switching means into its non-conductive state, upon an integrated feedback of the load voltage exceeding a predetermined level. The system shown in Fig. 1 comprises four transistor switching circuits 18, 20, 22, 24. The comparator 12 and bistable 14 receive pulses from the clock pulse generator (10), (not shown). When the comparator 12 receives a clock pulse, an integrating capacitor C4, which integrates the voltage across the load, is discharged, and when the bistable 14 receives a clock pulse it switches to a first stable state causing the drive circuit to make the switches 18-24 conduct. The bistable remains in this state until the comparator senses that the integrated voltage has reached the predetermined voltage when it reverts to its second state thereby causing the switches to go non-conductive. Details of the clock pulse generator 10, comparator 12, bistable 14, and driving circuit 16 are described with reference to Fig. 2 (not shown), and details of a switching circuit 18 and power supplies are described with reference to Fig. 3 (not shown). Particularly, each switching circuit is comprised of a plurality of transistors arranged in parallel in a Darlington type circuit with the emitter circuit of each transistor including equal resistance and with the lines connecting the collector of each transistor to the line connecting the circuit to the load being of equal length. The switching circuits may be arranged in pairs, each pair being controlled by a respective single transistor.
Patent GB-147131-A (GB)
Title: Apparatus for the measurement of the time corresponding to the so-called firing delay in firing apparatus for naval guns
IPC: F41G5/26
Filed: 1920-07-07
Abstract: 147,131. Krupp Akt.-Ges., F. Nov. 13, 1915, [Convention date]. Ordnance, discharging by means external to breech mechanism.-Relates to firing-mechanism, for naval guns, of the kind in which the firing- circuit is completed by two contacts, one of which is stabilized by a gyroscope while the other moves with the ship, the contacts being caused to touch in advance of the instant when the ship is horizontal by a "time of lead" which is equal to the "firing delay" constant of the gun and projectile. The invention consists in apparatus for measuring the time of lead. The apparatus comprises a swinging platform A, on which the firing-device C is placed, and electric devices for recording on a rotating disk T the instants at which (i) the two contacts c<6>, c<7> of the firing- switch engage, and (ii) the platform is horizontal. The platform is rocked by means of a crank F engaging an arm E projecting from one of the trunnions of the platform. The crank is driven by a motor G rotating at constant speed. The recording apparatus comprises a disk T carried by the shaft g<2> of the motor G and a pair of sparking-points s<1> s<2> which can be adjusted radially across the disk. Electric connexions and contacts are so arranged that during each revolution of the crank-arm, sparks pass between the points s<1>, s<2> at instants corresponding to (i) one of the engaging positions of the contacts c‹, c' and (ii) one of the horizontal positions of the platform A. Each spark is produced by a condenser discharging through the primary circuit of a sparking-coil. By moving the points s<1>, s<2> step by step towards the centre of the disk a number of records are obtained. All the marks corresponding to the horizontal position of the platform will be on one radius, and the morks corresponding to the closing of the firing circuit approximately on another radius. From the angle between these two radii, the time of lead can be calculated. The crank-mechanism is mounted on a slide Z so that the amplitude of the roll of the platform A can be varied by adjusting the distance between the shaft of the crank F and the axis of rotation of the platform.
Patent GB-201564-A (GB)
Title: Improvements in or relating to the selective transmission of electric waves
IPC: H04B3/38
Filed: 1923-07-26
Abstract: 201,564. Western Electric Co., Ltd., (Assignees of Vennes, H. J.). July 26, 1922, [Convention date]. Wired wireless systems; multiplex signalling; combined transmitting and receiving arrangements.-Receiving and transmitting circuits are associated with a transmission line or medium by inductively coupling the receiving-circuit to the line, and by connecting the transmitting-circuit directly in the line at an electrical mid-point. As shown, the main line ML is connected through a high-pass filter HPF to the primary coil 5 of a transformer, which is divided at its middle point for the connection of the transmission circuit TC. The receiving-circuit RC includes the other coil of the transformer. Low-frequency telephone currents in the line L are transmitted through a balanced transformer 6 to a valve M which modulates the oscillatory current generated by the valve O and transmits the modulated current through a band filter SBF and, if desired, a second filter TGF to the transmitting line TC. The high-frequency currents received from the line ML pass through band filters GF and RBF to a detector D and thence through a voice-frequency filter VF to the low-frequency line L. Several channels employing different frequencies may be associated with the transmitting and receiving lines TC, RC, selection being effected by band filters such as SBF, RBF, while filters TGF and GF may be arranged to pass the whole set of transmitting and receiving frequencies respectively. The first elements of the receiving filters have low impedance at transmitter frequencies, so that the receiving-coil of the transformer is practically short-circuited as regards currents coming in from the line TC. The effect of this is to reduce the impedance of the line coil of the transformer 5 for the transmitter frequencies. The first elements of the transmitter band filters are similarly arranged to have low impedance for receiver frequencies, and thus form practically a short-circuit connection between the two portions of the line coil 5 for carrier currents coming in on the line ML. An earthed electrostatic shield 11 is arranged between the two windings of the transformer 5. The line ML may transmit lowfrequency currents through a low-pass filter LPF to an ordinary telephone line TL. The filters are of the kind described in Specification 142,115.
Patent GB-403456-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60P3/38
Filed: 1932-07-07
Abstract: 403,456. Tent frames. KERR, M. C., Ivy House, Alford, Lincolnshire. July 7, 1932, No. 19279. [Class 20 (i).] In vehicles having a framework adapted to receive a tent covering the framework comprises a pair of guide tubes mounted on or in the roof and a frame rod or rods telescopically arranged in each guide tube and means whereby such rods mutually engage to form the framework. As shown two transverse tubes hare mounted on the vehicle top a by means of holders g positioned on studs f. The tubes h house two telescopic tubes or rods o, p which may be drawn out the rod p having a joint whereby it may be turned in the horizontal plane and connected to the rod p of the other tube h to form a rectangle over which a cover, such as a roller cover, may be drawn and secured to the rods p or extended and pegged to the ground. If desired the tubes h may be longitudinally arranged or may be housed beneath the vehicle roof by means of screw nuts 14, 16, Figure 7, and cap 17 being provided to close the aperture in the roof when desired. A spring r is provided as shown in Figure 2 to assist in the extension of the rods p. Other forms of frames are described. 403,456.
Patent GB-983154-A (GB)
Title: Improvements in and relating to magnetic modulators
Inventor: SCHWANN GERHARD
IPC: H03C1/10
Filed: 1961-05-30
Abstract: 983,154. Controlled non-linear inductors. LICENTIA PATENT-KERWALTUNSGS G.m.b.H. May 30, 1961, No. 19501/61. Heading H3B. A magnetic modulator of the second harmonic type includes balancing windings connected to an adjustable load. As shown in Fig. 1, two separate magnetic cores have the usual energizing windings 2, 2<SP>1</SP>, modulating input windings 4, 4<SP>1</SP> and output windings 6, 6<SP>1</SP>. A second input winding 3, 3<SP>1</SP> is also provided so that actual and reference inputs may be compared. Each core in addition includes a balancing winding 5, 5<SP>1</SP> which is connected in a closed parallel circuit with respective portions of an adjustable potentiometer 16. The energizing windings 2, 2<SP>1</SP> are supplied, for example, with 10 V. at 50 c/s. at terminals 8 and 10, the energizing circuit including a halfwave rectifier 11 and a tapped resistor 9. In a modification, Fig. 6, a single three-limbed core is used the centre limb of which preferably ineludes an air gap 29. Only the energizing windings 22, 22<SP>1</SP>, output windings 24, 241 and balancing windings 23, 23<SP>1</SP> are shown.
Patent GB-440888-A (GB)
Title: Manufacture of glycerides of fatty acids
IPC: C11C3/02
Filed: 1934-07-02
Abstract: Monoglycerides or mixtures of glycerides rich in monoglycerides are obtained by the direct esterification of one molecular proportion of a fatty acid or acids with more than one, preferably three or more, molecular proportions of glycerol in a solvent medium comprising a phenol or a mixture of phenols. Phenol, the cresols, or the xylenols, or mixtures such as commercial cresylic acid may be used.  An aromatic sulphonic acid such as naphthalene-b -sulphonic acid, or camphor-b -sulphonic acid may be employed as a catalyst.  The reaction temperature may vary between 180 and 120 DEG  C.  After the esterification, the phenol may be removed by distillation in a current of steam or in a vacuum and the residue washed with alkali to remove any unchanged acid.  Examples are given of the esterification of stearic, oleic, palmitic and lauric acids.  The Provisional Specification is not restricted to the employment of excess of glycerol.  Specification 317,736, [Class 2 (iii)], is referred to.
Patent GB-530920-A (GB)
Title: Improvements in and relating to handles for cutlery and other tools and the method of attachment thereto
IPC: B26B3/02
Filed: 1939-07-06
Abstract: 530,920. Knife &c. handles. SNOW, J. E., SNOW, D., and HARRIS, 1. G. F. July 6, 1939, No. 19654. [Class 61 (i)] The tang c of a knife &c. a secured in a hollow handle b by cement f is correctly aligned with the handle whilst the cement is setting by means of a compressible or flexible bent wire &c. positioning member e loosely fitted to the tang and entered in the mouth of the handle and permitting movement of the tang in relation to both the handle and the positioning member.
Patent GB-1422018-A (GB)
Title: Packaging for conveying radio active substances such as  irradiated fuel elements having high afterheat
IPC: G21F5/10
Filed: 1973-04-25
Abstract: 1422018 Shielded containers COMMISSARIAT A L'ENERGIE ATOMIQUE 25 April 1973 [27 April 1972] 19673/73 Heading B4Q A shielded container 1 for conveying radioactive substances such as spent nuclear fuel elements comprises a central shroud 2, an antigamma ray lead core 3, and a heat exchanger 4 disposed in a convection chamber 5 formed between the cam 3 and an outer anti-neutron containment 6. The fuel elements or the like to be conveyed are disposed inside shroud 2, which is sealed by a cover (7) and an end member (8) (Fig. 1, not shown) which provide the same protection as the container 1. Heat exchanger 4 comprises a metal sleeve 10 on which cooling elements such as steel pins 11 are secured. Containment 6 has longitudinal orifices 12 which connect chamber 5 to atmosphere via convergent slots 13, 14. Blocks 16 maintain the spacing between the inner portions 17 and the outer portions 18 and provide the vertically spaced slots 13, 14. Chamber 5 is cooled either by natural connection through the slots 13, 14 or by forced convection by means of bellows (not shown) connected to the orifices 12. As protection against fire, a wet neutron-absorbing material, e.g. a metallic powder in suspension in water can be used for the containment 6.
Patent GB-150887-A (GB)
Title: An improvement in or connected with axle casings for motor cars, taxi-cabs, motor vans and the like
IPC: B60B27/00
Filed: 1919-08-11
Abstract: 150,887. Austin, G. F. Aug. 11, 1919. Axles and axle structures.-In mounting a road wheel on a driving axle, a sleeve 2 surrounding the axle 1 is secured to the axle casing 4 and has a reduced end to carry roller or ball bearings forthe wheel hub 6. The end wall 10 of the hub has an aperture 27<1> of rectangular cross section and tapering inwardly to receive a corresponding part of a socket 28, which has a cylindrical extension to engage a bore in the sleeve 2 and has a tapered hole to engage the coned end of the axle 1. The socket may be keyed to the axle or the axle end, and the hole in the socket may be of square cross section. The socket thus forms a driving connexion between the axle and the hub. The hub is formed with a brake drum 13, the end 5 of the casing 4 forming a closing plate or housing for the brake.